Basic HTML version of Foils prepared 17 Sept 1996

Foil 19 Parallelism in HPF

From New CPS615HPF and Fortran90 Discussion Sept 17 96 Basic Simulation Track for Computational Science CPS615 -- Fall Semester 96. by Geoffrey C. Fox, Tom Haupt


1 Parallelism in HPF is expressed explicitly
  • Fortran 90 array expressions and assignments (including WHERE)
  • HPF Library and Array intrinsics
  • FORALL statement and construct
    • PURE labels procedures that can be used in FORALL as they have no "side-effects"
  • INDEPENDENT assertion on DO loops
2 Compiler may choose not to exploit information about parallelism
3 Compiler may detect parallelism in sequential code

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© on Tue Oct 7 1997